The data is there for anyone to look. 1 in 2000 to 3000 young males got myocarditis.............most recovered with little clinical relevant issues...........some did not.
For those really interested in vaccine safety, there is a really good book out there that goes through the science (or lack of) for vaccines that is a good primer to talk about the Covid Vaccine.
You can buy or download at Amazon:
Turtles all the way down; Vaccine Science and Myth
That's an anti-vaccine book that's been debunked.
The Grand Debunk of the antivaxxer book “Turtles All the Way Down” (part 1/10)
This book — written by "Anonymous", edited by Children's Health Defense lawyer Mary Holland and Children's Health Defense Publisher Liaison and Thinking Moms’ Revolution co-founder Zoey O’Toole,
sciencebasedmedicine.org